WO2021221229A1 - Portable water bottle cap having filtration function - Google Patents

Abstract

The present invention relates to a portable water bottle cap having a filtration function and, more specifically, to a portable water bottle cap having a filtration function, the cap comprising: a fixing part (100) detachably coupled to the outer surface of an opening of a water bottle (B); a cap part (200) positioned on an upper part of the fixing part (100); a filter accommodation member (300) positioned under the fixing part (100); and a filter member (400) embedded in the filter accommodation member (300) to filter out foreign substances contained in the water of the water bottle (B).

Description

Portable water bottle cap with filtration

This application claims the benefit of priority based on Korean Patent Application No. 2020-0051626 dated April 28, 2020, and all contents disclosed in the literature of the Korean patent application are incorporated as a part of this specification.

The present invention relates to a portable water bottle cap with a built-in filter, and more particularly, to a portable water bottle cap with a built-in filter, which completely removes various foreign substances contained in water and can replace the filter after using it for a certain period of time, so maintenance cost is low is about

Due to increasingly serious environmental pollution, the quality of water in various water systems such as rivers, lakes and dams, which are water intake sources, is deteriorating. In order to produce and supply safe drinking water, most of the water treatment processes introduce advanced water purification processes such as ozone, activated carbon, and separation membrane. driving situation.

However, due to distrust of tap water, each home or office installs an expensive water purifier or purchases bottled water and uses it as drinking water. However, bottled water sold on the market is recognized as safe from bacteria and harmful substances through strict quality control. Not only is it practically impossible, but it cannot be said that bottled water is safe because it is impossible to block the contaminated groundwater from moving to other places.

Meanwhile, as the quality of life and interest in health are increasing, people buy bottled water or drink tap water from a portable water bottle for the purpose of exercising, hiking, various leisure sports, and drinking enough water.

However, even in sterilized water, many consumers are reluctant to drink tap water due to the contamination of the water by bacteria floating in contact with air, resulting in food poisoning, or due to the odor from chemicals added during the water intake or water purification process.

In particular, when traveling abroad, it is difficult to drink water or suffer from serious diseases due to differences in water quality characteristics or purification processes by country.

As a prior art for solving the above problems, Korean Utility Model Publication No. 0215729 has a coupling part coupled to a portable water bottle to close the water inlet, a coupling part having a water outlet formed in one area, and the coupling part, , There is disclosed a water purification filter for a portable water bottle including a water purifying unit for purifying the water contained in the portable water bottle and guiding it to the water outlet.

According to the prior art, by coupling the water purification filter having a water purifying mechanism to the portable water bottle, the water contained in the portable water bottle can be purified and drunk, and there is an advantage of drinking more safely. The replacement cost is high because it must

(Prior art literature)

(Patent Document 1) Korean Utility Model Publication No. 0215729

The present invention has been devised to solve the above problems, and an object of the present invention is to provide a portable water bottle cap with a built-in filter that is inexpensive to replace while completely blocking foreign substances or bacteria contained in water.

Another object of the present invention is to provide a portable water bottle cap with a built-in filter capable of simultaneously removing soluble hardness-causing substances, odor components, and bacteria.

A portable water bottle cap with a filtration function of the present invention for solving the above problems, the water bottle (B), the fixing part is detachably coupled to the outer surface of the opening (100); a cap part 200 positioned above the fixing part 100; a filter accommodating member 300 positioned under the fixing part 100; and a filter member 400 for filtering foreign substances contained in the water of the water bottle (B).

In addition, in the portable water bottle cap of the present invention, the fixing part 100 includes a first side part 110 in close contact with the outer surface of the opening of the water bottle (B) and a first flat part 120 covering the first side part 110 . Including, but the first flat portion 120, the upper surface of the discharge portion 121, which protrudes to a predetermined height, and a raised wall 123 for fixing the cap portion 200 to the fixing portion 100 is provided, characterized in that do it with

In addition, in the portable water bottle cap of the present invention, the cap part 200 includes a cap body 210 comprising a second flat part 211 and a second side part 212 , the fixing part 100 and the cap body 210 . It includes a connecting portion 230 for connecting, wherein the connecting portion 230 is a bendable first connection portion 231 having one side fixed to the second flat portion 211 and the other end fixed to the first flat portion 120 . , and a second connecting portion 232 having both ends provided outside the bent portion of the first connecting portion 231 .

In addition, in the portable water bottle cap of the present invention, the first flat portion 120 has an air inlet 124 for inducing the inlet of air into the water bottle B, and a moving piece that opens and closes the air inlet 124 ( 125) is provided.

In addition, in the portable water bottle cap of the present invention, the air inlet 124 is a first through hole (124 (a)) having a predetermined inner diameter, the first through hole (124 (a)) support plate 124 (b) of the outer periphery )), the second through-hole 124(d) of the outer periphery of the support plate 124(b), and one side crossing the second through-hole 124(d) while connected to the support plate 124(b)) It is characterized in that it is composed of a connecting plate (124 (c)).

In addition, in the portable water bottle cap of the present invention, the moving piece 125 has a head 125(a), which is located on the upper surface of the first through hole 124(a) and the support plate 124(b), and has one side. A body part 125(b) extending down a predetermined length through the first through hole 124(a) while being connected to the bottom surface of the head part 125(a), and one side of the body part 125( b)) and connected to the second through hole (124(d)) characterized in that it is composed of a larger tail portion (125(c)) than the outer diameter.

In addition, in the portable water bottle cap of the present invention, on the inner surface of the second flat portion 211 of the cap body 210 , the first auxiliary cap 211 (a) in close contact with the outer edge of the discharge portion 121 ) , and a second auxiliary cap 211(b) that is in close contact with the inner surface edge of the discharge part 121 is further provided.

In addition, in the portable water bottle cap of the present invention, a second protrusion 211(b)' is formed on the outer surface of the second auxiliary cap 211(b), and the second protrusion is formed on the inner surface of the discharge unit 121. (211(b)') is characterized in that the seating groove 121' is formed.

In addition, in the portable water bottle cap of the present invention, a third protrusion 212' is formed on the inner edge of the second side part 212 of the cap body 210, and the third protrusion part ( 212 ′) and a first protrusion 123 ′ that meshes with each other is formed.

In addition, in the portable water bottle cap of the present invention, the moving piece 125 is characterized in that it is made of a material having elasticity.

According to the portable water bottle cap with a built-in filter of the present invention, since the filter or the filter member to which the filter is mounted can be selectively replaced, the replacement cost is low and safe water can be supplied from foreign substances or bacteria.

In addition, since the filter in the present invention contains a positive charge additive, cellulose, and zeolite, it is effective to effectively remove various contaminants in water including hardness-inducing substances.

1 is a schematic diagram showing a state in which a lid having a built-in filter member is mounted on a portable water bottle according to a preferred embodiment of the present invention.

2 is a side view of a water bottle cap according to a preferred embodiment of the present invention.

3 is an exploded perspective view of a water bottle cap according to a preferred embodiment of the present invention.

4 is a perspective view illustrating an open state in which the cap part is connected to the fixing part in the water bottle cap according to the preferred embodiment of the present invention.

Figure 5 is a side view of the cap portion and the fixing portion in the water bottle cap according to a preferred embodiment of the present invention.

6 is an enlarged perspective view of part A of FIG. 4 .

7 is a cross-sectional view for explaining the coupling structure of the fixing part and the cap part in the water bottle cap according to the preferred embodiment of the present invention.

8 is a perspective view of a filter member according to a preferred embodiment of the present invention.

9 is a flowchart illustrating a filter manufacturing method according to a preferred embodiment of the present invention.

10 is a block diagram of a filter manufacturing apparatus according to a preferred embodiment of the present invention.

Hereinafter, a portable water bottle cap with a filtration function according to the present invention will be described with reference to the accompanying drawings.

In the present application, terms such as “comprises”, “have” or “have” are intended to designate the existence of features, numbers, steps, components, parts, or combinations thereof described in the specification, and one or more other It is to be understood that this does not preclude the possibility of the presence or addition of features or numbers, steps, operations, components, parts, or combinations thereof.

In addition, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

1 is a schematic diagram showing a state in which a lid having a built-in filter member is mounted on a portable water bottle according to a preferred embodiment of the present invention.

According to the present invention, since the filter is built in the inner space of the lid of the water bottle, and thus water passes through the filter when drinking, various foreign substances including hardness-inducing substances contained in the water filled in the water bottle can be removed.

As shown in Figure 1, the water bottle cap of the present invention having the above functions is a fixing part 100 that is detachably coupled to the outer surface of the water bottle (B) opening, a cap part located on the fixing part 100 ( 200), a filter accommodating member 300 positioned under the fixing unit 100, and a filter member 400 for filtering and removing hardness-inducing substances, particulate foreign substances, and bacteria contained in water.

Figure 2 is a side view of a water bottle cap according to a preferred embodiment of the present invention, Figure 3 is an exploded perspective view of the water bottle cap according to a preferred embodiment of the present invention.

As shown in FIGS. 2 and 3 , the fixing part 100 is a first side part 110 that is tightly fixed to the outer surface of the water bottle B opening in a male and female screw fastening method, and the first side part 110 is covered. It is configured to include the first flat portion 120, and a plurality of irregularities 111 may be additionally formed on the outer surface of the first side portion 110 so as not to slip when holding and rotating by hand.

In addition, on the outside of the first flat part 120 of the fixing part 100, a discharge part 121 protruding a predetermined length to the upper part is provided so that the water that has passed through the filter member 400 can be easily drunk, while on the inside, there is water A holder 122 communicating with the discharge unit 121 and having a female thread formed on the inner surface is provided so as to be movable.

The cap part 200 located above the fixing part 100 is for opening and closing the discharge part 121 and at the same time preventing foreign substances from entering the water bottle, and the cap part body 210 and the cap part body 210 can be easily removed. It is configured to include an extension part 220 for flipping and a connection part 230 connecting the fixing part 100 and the cap part body 210 .

The filter accommodating member 300 positioned under the fixing part 100 and detachably coupled to the fixing part 100 is for fixing and supporting the filter member 400 , and includes an upper support part 310 and a lower support part 320 . , and a side support 330 positioned between the upper support 310 and the lower support 320 .

First, the upper support portion 310 is described, except for a partial region in the middle of the third side portion 312 and the third flat portion 311 so as to fix one end of the filter member 400 is sealed. The upper middle of the third flat part 311 provides a path for the water that has passed through the filter member 400 to move to the discharge part 121 and is attached to the outer surface so as to be detachable from the holder 122 of the fixing part 100 . A first fastening part 311 (a) having an external thread protrudes to a predetermined height, and a second fastening part 311 (b) connected to one end of the filter member 400 is provided at a lower portion thereof.

The lower support part 320 is spaced apart from the upper support part 310 by a predetermined distance so as to fix the other end of the filter member 400, and includes the fourth flat part 321 and the second part to maintain a closed state. It is configured to include 4 side parts (322).

Reference numeral 321 (a) denotes a third fastening part, which is inserted into the other end of the filter member 400 to more firmly fix the filter member 400, but it is obvious that it can be omitted if necessary.

Subsequently, a cylindrical side support 330 is positioned between the upper support 310 and the lower support 320 , and the water filled in the water bottle moves to the filter member 400 located in the inner space of the side support 330 . One or more holes 331 are formed on the surface of the side support part 330 so as to be supported.

4 is a perspective view showing an open state with the cap connected to the fixing part in the water bottle cap according to the preferred embodiment of the present invention, and FIG. 5 is a side view of the cap and the fixing part in the water bottle cap according to the preferred embodiment of the present invention. 6 is an enlarged perspective view of part A of FIG. 4 .

4 to 6, the fixing part 100 and the cap part 200 will be described in more detail.

The first flat part 120 of the fixing part 100 has a discharge part 121 positioned in the center, and a raised wall 123 for fixing the cap part 200 and a water bottle (B) outside the discharge part 121 . An air inlet 124 for inducing the inlet of air, and a moving piece 125 for opening and closing the air inlet 124 are additionally provided.

The raised wall 123 is in close contact with the second side part 212 of the cap part 200 to fix the cap part 200 to the fixing part 100 , and these fixing structures will be described later.

When drinking water from the water bottle, the water dispenser 121 is put in the mouth and the water bottle is pressurized by hand. Since the volume of the water bottle also decreases as much as the volume of the drinking water, it is difficult to discharge if there is little water remaining. However, since the discharge unit 121 communicates with the filter member 400 , it is not easy for air to enter the water bottle through the discharge unit 121 .

The air inlet 124 and the moving piece 125 of the present invention are for solving the above-described problems, and allow air to easily enter the water bottle without passing through the discharge unit 121 .

As shown in Figure 6, the air inlet 124 is a first through hole (124 (a)) having a predetermined inner diameter, the first through hole (124 (a)) circular support plate (124 (b)) of the outer periphery) , a second through hole (124 (d)) of a circular shape provided on the outer periphery of the support plate (124 (b)), and one side is connected to the support plate (124 (b)) while crossing the second through hole (124 (d)) It is composed of a connecting plate 124 (c).

In addition, the moving piece 125 is located on the upper surface of the first through hole 124 (a) and the support plate 124 (b) and has a substantially conical head 125 (a), one side of which is the head 125 (a). )) the body part 125(b)) connected to the bottom and extending down a predetermined length through the first through-hole 124(a), and one side connected to the body part 125(b) and the second through-hole (124(d)) It consists of a tail part 125(c) which is larger than the outer diameter.

Therefore, when drinking with the discharge part 121 in the mouth with the bottom of the water bottle facing upward, the tail part 125(c) has the first through hole 124(a) and the second through hole 124 ( d)) is sealed, so water does not leak out, and when the water bottle is placed in its original position, air is easily introduced into the second through hole 124 (d).

Here, the outer diameter of the body portion 125(b) is the inner diameter of the first through hole 124(a) so that the moving piece 125, which may be made of a material having elasticity, for example, a silicone material, can easily move up and down. It is self-evident that it should be slightly smaller than that, the outer diameter of the head 125(a) is larger than the inner diameter of the first through hole 124(a) and smaller than the inner diameter of the second through hole 124(d).

Subsequently, the cap part 200 will be described in detail. As described above, the cap part 200 includes a cap part body 210 , an extension part 220 and a connection part 230 , and the cap part body 210 includes a second flat part 211 and a second side part 212 . ) consists of

On the inner surface of the second flat portion 211 , a first auxiliary cap 211 (a) is in close contact with the edge of the outer surface of the discharge unit 121 , and a second auxiliary cap is in close contact with the edge of the inner surface of the discharge unit 121 . (211(b)) is provided.

The second side part 212 is in close contact along the outer surface of the raised wall 123 of the fixing part 100, and near the connection part 230, both ends of the second side part 212 are connected to the inner surface of the first flat plate shape. Second auxiliary side 212(b) in the form of a flat plate connecting both ends of the second side part 212 while being spaced apart from the auxiliary side 212(a) and the first auxiliary side 212(a) by a predetermined distance ) is provided. The first auxiliary side surface 212(a) and the second auxiliary side surface 212(b) are for blocking contaminants introduced from the vicinity of the connection part 230 .

On the other hand, a first cut-out 212(a)' in the middle of the first auxiliary side 212(a), and a second cut-out 212(b)' in the middle of the second auxiliary side 212(b). is provided, which is to provide a space in which the connection part 230 can be accommodated when the cap part 200 is closed.

The connection part 230 is a bendable first connection part 231 fixed on one side to the second flat part 211 and the other side fixed to the first flat part 120 of the fixing part 100, both ends of the first The second connecting portion 232 connected to the outside of the bent portion of the connecting portion 231, and a predetermined portion are connected to the first connecting portion 231 and the first flat portion 120, respectively, so that the first connecting portion 231 and the second It is configured to include a reinforcing part 233 in the shape of a substantially square flat plate that can more firmly maintain the bonding force of the flat part 211 .

When the cap part 200 is repeatedly opened or closed, the folded part of the first connection part 231 directly connecting the fixing part 100 and the cap part 200 may be broken. However, in the present invention, since the second connection part 232 is additionally provided, the connection state between the fixing part 100 and the cap part 200 can be maintained by the second connection part 232 even if the first connection part 231 is damaged. In particular, since the second connection part 232 suppresses excessive bending of the cap part 200 , there is an advantage that the lifespan of the first connection part 231 can be increased.

7 is a cross-sectional view for explaining the coupling structure of the fixing part and the cap part in the water bottle cap according to the preferred embodiment of the present invention.

In order to reliably block foreign substances from entering the discharge unit 121 or water leakage, the discharge unit 121 and the first and second auxiliary caps 211(a), 211(b) should be firmly fastened, In addition, in order to prevent foreign substances from being attached to the outer surface of the discharge part 121 , the raised wall 123 and the second side part 212 of the cap body 210 should be properly coupled.

However, in the present invention, the second protrusion 211(b)' is formed on the outer surface of the second auxiliary cap 211(b), while the second protrusion 211(b)' is formed on the inner surface of the discharge unit 121. Since a seating groove 121 ′ is formed in which to be seated, it is possible to completely block the flow of water through the discharge unit 121 and foreign substances are not introduced.

In addition, a third protrusion 212 ′ is formed on the inner edge of the second side surface 212 of the cap body 210 , and a first protrusion 123 that meshes with the third protrusion 212 ′ is formed on the outer surface of the raised wall 123 . ') are formed at the same time, so that the cap body 210 can be securely coupled and fixed to the fixing unit 100 .

8 is a perspective view of a filter member according to a preferred embodiment of the present invention.

As shown in FIG. 8 , the filter member 400 accommodated in the filter receiving member 300 is provided with a packing part 411 (a) mounted on an outer surface and a fourth fastening part 411 extended by a predetermined length. A first sealing part 410 , a second sealing part 420 and a filter 430 are included. The first sealing part 410 may be detachably coupled to the third fastening part 321 (a) while fixing the upper part of the filter 430 .

The second sealing part 320 is spaced apart from the first sealing part 310 by a predetermined distance, and the upper part of the filter 430 is formed by the first sealing part 310 and the lower part by the second sealing part 320 . is sealed

Here, the filter 430 is preferably in a form in which predetermined portions are folded along the longitudinal direction to have a pleated shape, because the filter surface area per unit volume can be increased and the filter shape can be easily maintained.

As such, in the present invention, after using the water bottle cap for a certain period of time, only the filter member 400 can be replaced with a new one or the filter receiving member 300 itself can be replaced, so that the coupling member 100 can be used continuously.

Hereinafter, a method of manufacturing the filter 430 embedded in the filter accommodating member 400 will be described in detail.

9 is a flowchart illustrating a filter manufacturing method according to a preferred embodiment of the present invention. The filter of the present invention is a filter with a function to remove various foreign substances and bacteria contained in water, as well as hardness-inducing substances such as magnesium and calcium, positive charge additive, glass fiber, binder fiber, cellulose, zeolite powder and It may be prepared including the steps of mixing water and molding.

Specifically, the step of mixing the positive charge additive, glass fiber, binder fiber, cellulose, zeolite powder and water is a step of preparing a first mixture by mixing the positive charge additive and water in step 1, step 2 glass fiber, water and Mixing the binder fibers to prepare a second mixture, Step 3 preparing a third mixture by mixing water and cellulose, Step 4 Mixing the third mixture prepared in Step 3 with the first mixture prepared in Step 1 above Preparing a fourth mixture, step 5 Preparing the fifth mixture by mixing the second mixture prepared in step 2 with the fourth mixture prepared in step 4, step 6, step 6, zeolite powder in the fifth mixture prepared in step 5 mixing to prepare a raw material slurry mixture.

And the forming step is, step 7, laminating the raw slurry mixture prepared in step 6 on a mesh belt, step 8, dehydrating the raw slurry mixture stacked on the mesh belt, step 9, pressing the dehydrated raw slurry mixture It consists of a step of pressing with a roller and a step of drying with hot air in 10 steps.

To describe the above steps in more detail, step 1 is a step of preparing a first mixture by mixing a positive charge additive and water. Here, the positive charge additive is preferably mixed in a ratio of 15 to 40 L based on 600 L of water. If the mixing amount of the positive charge additive is less than 15L, the positive charge formed on the fiber surface is not sufficient and the ability to remove contaminants is lowered. The additive is preferably mixed in the above ratio.

Here, the positive charge additive may be one or more selected from the group consisting of polyvinylamine, vinylamine copolymer, vinylamine terpolymer, and vinylamine homopolymer.

The first mixture composed of the above mixing ratio is stirred for 45 to 75 minutes at a speed of 1300-1800 RPM in a stirrer.

Step 2 is a step of preparing a second mixture by mixing glass fibers, water and binder fibers.

Here, it is preferable to mix the glass fiber in a ratio of 1800 to 3000 g and the binder fiber in a ratio of 300 to 600 g based on 600 L of water.

When the mixing amount of glass fiber is less than 1800 g, the pores of the manufactured filter are too large, and the retention rate of zeolite is low. The fibers are preferably mixed in the above ratio. Here, it is preferable that the glass fiber has a diameter of 0.1 to 0.6 μm and a length of 5 to 50 μm.

As the binder fiber, any one or more selected from the group consisting of polyethylene, polypropylene, and polyethylene terephthalate may be used, and when the mixing amount of the binder fiber is less than 300 g, the fibers do not tangle with each other, so it is difficult to move to a drying furnace due to weak intellectual strength, conversely When it exceeds 600 g, the content of glass fiber and cellulose is relatively low, so that the function as a filter cannot be sufficiently exhibited, so that the binder fiber is preferably mixed in the above ratio.

The second mixture composed of the above mixing ratio is stirred for 100 to 140 minutes at a speed of 1300-1800 RPM in a stirrer.

Step 3 is a step of preparing a third mixture by mixing water and cellulose.

Here, it is preferable to mix the cellulose in a ratio of 5000 to 6000 g based on 600 L of water.

When the cellulose mixing amount is less than 5000 g, the zeolite retention rate is low, and on the contrary, when it exceeds 6000 g, it is difficult to manufacture the filter due to pore control and reduced dehydration power, so the cellulose is preferably mixed in the above ratio. Cellulose can be obtained from various herbal or woody materials, for example, wood fibers can be obtained through a mechanical method such as a grinder, a high pressure homogenizer, a microfluidizer.

The cellulose preferably has a diameter of 0.1 to 0.6 μm and a length of 3 to 10 μm. The third mixture composed of the above mixing ratio is stirred for 100 to 140 minutes at a speed of 1300-1800 RPM in a stirrer.

Step 4 is a step of preparing a fourth mixture by mixing the third mixture prepared in step 3 with the first mixture prepared in step 1, and it is preferable to stir under the same conditions as in step 3.

Step 5 is a step of preparing a fifth mixture by mixing the second mixture prepared in step 2 with the fourth mixture prepared in step 4, and it is preferable to stir under the same conditions as in step 1.

The first mixture, the second mixture, and the third mixture prepared in steps 1 to 3 are not all mixed, and in step 4, the first mixture and the third mixture are first mixed, and then the fourth mixture is prepared, and then the second mixture is prepared. The reason for preparing the fifth mixture by mixing the mixture is to maximize the formation of positive charges on the cellulose surface. That is, when the first mixture mixed with the positive charge additive and the third mixture containing cellulose are first mixed and stirred, positive charges are formed on the surface of the cellulose, but the first mixture, the second mixture, and the third mixture are mixed at once, or the first mixture , because when the second mixture and the third mixture are sequentially mixed, positive charges are not sufficiently formed on the cellulose surface due to the binder fibers of the second mixture.

Step 6 is a step of preparing a raw material slurry mixture by mixing the zeolite powder with the fifth mixture prepared in step 5 above.

At this time, the zeolite powder is preferably mixed in a ratio of 2500 to 6000 g in the prepared fifth mixture, and stirred at a speed of 1300-1800 RPM for 20 to 40 minutes.

If the zeolite powder mixing amount is less than 2500 g, the removal ability of the hardness material is lowered, and conversely, if it exceeds 6000 g, the basis weight and thickness of the filter increase unnecessarily, so the zeolite is preferably mixed in the above ratio. Here, it is preferable that the zeolite has a diameter of 2 to 10 µm. If the diameter of the zeolite is less than 2 μm, the pore size of the filter is too small because the diameter is too small, and if it exceeds 10 μm, the diameter is too large and the hardness material is not sufficiently removed. Therefore, the zeolite preferably has a diameter in the above range.

In preparing the raw material slurry mixture, the reason for mixing the zeolite powder last is to prevent clogging of the zeolite surface by the binder fibers.

Step 7 is a step of laminating the raw material slurry mixture prepared in step 6 on a mesh belt, and the manufacturing apparatus shown in FIG. 10 may be used as an example.

Specifically, the raw slurry mixture prepared in step 6 is transferred to the hopper 510 by a pump (not shown), and the injection nozzle 511 connected to one side of the hopper 510 is a mesh belt moving at a predetermined speed. (520) The raw material slurry mixture is sprayed to the top.

Here, the injection nozzle 511 of the hopper 510 is preferably located inside the head box 530 which is blocked from the outside to form a separate space.

Step 8 is a step of dewatering the raw slurry mixture stacked on the mesh belt 520, and may include a first dehydration step and a second dehydration step.

Specifically, in the first dehydration step, at the moment the raw slurry mixture of step 7 is stacked on the mesh belt 520, the first reduced pressure dehydration device located on the lower surface of the mesh belt 520, which is the opposite surface on which the raw slurry mixture is stacked. (531) can be dehydrated, in this case, the vacuum pressure is preferably 50 ~ 80 cmHg.

As described above, if the primary reduced pressure dehydration is performed at the moment when the raw material slurry mixture is laminated on the mesh belt 520, the load applied to the mesh belt 520 can be reduced, thereby reducing the maintenance cost of the device, especially the first Since the fibers are bonded by dehydration, even if the mesh belt 520 moves in a slightly inclined state, the stacked raw material slurry mixture is maintained as it is, so that a filter having a uniform thickness can be obtained.

The second dehydration step is a step of further lowering the moisture of the first dehydrated raw material slurry mixture and at the same time inducing more dense bonding between fibers, and the second reduced pressure dehydration device 540 located behind the first vacuum dehydration device 531 . ), and natural gravity is also possible, but dehydration under reduced pressure with a vacuum pressure of 10 to 40 cmHg is preferable.

Step 9 is a step of pressurizing the dehydrated raw slurry mixture. The dehydrated raw material slurry mixture on the mesh belt 520 is transferred to and pressurized by a pair of pressure rollers 550 that are spaced apart at a predetermined interval.

Step 10 is a step of hot air drying. Even in the dehydration step, as a step of completely drying some residual moisture to obtain a filter, it is preferable to dry with hot air in a drying device 560 maintained at a temperature of 100-150°C.

After that, it can be wound with the winding device 570 as needed, and any one or more steps of the step of further laminating the raw slurry mixture on the mesh belt 520, the dehydration step, the pressurization step, and the hot air drying step can be repeatedly performed. have.

Hereinafter, the filter manufacturing method according to the present invention will be described in more detail through specific examples.

Example

A second mixture was prepared by mixing and stirring 600L of water and 15-40L of polyvinylamine, mixing and stirring the first mixture, 600L of water, 2000-3000g of glass fiber, and 300-600g of polyethylene. Separately, 600L of water and 5000-5500 g of cellulose were mixed and stirred to prepare a third mixture, and then the first mixture and the third mixture were mixed and stirred to prepare a fourth mixture.

Then, the fourth mixture and the second mixture were mixed and stirred to prepare a fifth mixture, and then 3000 to 6000 g of zeolite powder was mixed with the fifth mixture to prepare a raw material slurry mixture.

The raw material sludge mixture thus prepared was sprayed with a mesh belt using the apparatus of FIG. 10, and then dehydrated, pressurized and dried with hot air to prepare a filter.

Example	Glass fiber (g)	Cellulose (g)	Binder fiber (g)	Polyvinylamine (L)	Zeolite (g)
One	3000	5500	300	15	6000
2	3000	5500	300	20	6000
3	3000	5500	300	25	6000
4	3000	5500	300	30	6000
5	3000	5500	300	35	6000
6	3000	5500	300	40	6000
7	2000	5000	600	15	3000
8	2000	5000	600	20	3000
9	2000	5000	600	25	3000
10	2000	5000	600	30	3000
11	2000	5000	600	35	3000
12	2000	5000	600	40	3000

Experimental example

In order to evaluate the performance of the filter manufactured under the conditions of the Example of Table 1, flow rate, zeta potential, particle removal rate, hardness removal rate, etc. were investigated, and the results are shown in Table 2.

Example	basis weight (g/m 2 )	Thickness (mm)	Pore (㎛)	Zeta potential (mV)	Flow (LPM)	Particle Removal (1㎛)	Hardness Removal (%)
One	279	0.88	0.91	8.3	1.93	99.93	43
2	287	0.86	0.89	11.2	1.9	99.95	41
3	293	0.89	0.87	14.8	1.87	99.97	41
4	295	0.93	0.84	15.9	1.85	99.99	53
5	302	0.96	0.82	17.2	1.78	99.96	55
6	312	0.95	0.81	18.5	1.75	99.95	54
7	265	0.99	1.23	10.6	2.45	99.82	26
8	268	0.99	1.01	12.7	2.32	99.87	25
9	277	One	0.98	15.2	2.30	99.86	27
10	279	1.13	0.97	17.3	2.28	99.92	38
11	283	1.09	0.95	19	2.26	99.93	37
12	285	1.1	0.93	22.3	2.23	99.99	37

When the content of the raw material used in manufacturing the filter was large, the basis weight was high, and in the case of the thickness, it was investigated that the more the amount of zeolite added, the thinner it was.

In the case of pores, it was investigated to be the smallest at 0.81 to 0.84 μm in Examples 4 to 6, and the zeta potential was confirmed to be relatively high at 15.9 to 18.5 mV.

In the case of flow rate, Examples 7 to 12 were irradiated at 2.23 to 2.45 LPM, and the permeate amount was evaluated to be relatively good, but the ability to remove particles having a size of 1 μm was not only slightly lower than Examples 1 to 6, but also too thick, especially In Examples 4 to 6, a high hardness removal rate of 53 to 55% was obtained, whereas the filters prepared under the conditions of Examples 7 to 9 had a hardness removal rate of less than 30%.

As described above in detail a specific part of the content of the present invention, to those of ordinary skill in the art, these specific descriptions are only preferred embodiments, and the scope of the present invention is not limited thereby, It is obvious to those skilled in the art that various changes and modifications can be made within the scope and spirit of the present invention, and it is natural that such variations and modifications fall within the scope of the appended claims.

(Explanation of symbols)

100: fixed part

110: first side part

111: irregularities

120: first flat part

121: discharge part 121′: seating groove

122: holder

123: raised wall 123′: first protrusion

124: air inlet

124(a): first through hole 124(b): support plate

124(c): connecting plate 124(d): second through hole

125: moving

125(a): head 125(b): body

125(c): tail

200: cap

210: cap body

211: second flat part

211(a): first auxiliary cap

211(b): second auxiliary cap 211(b)′: second protrusion

212: second side part

212′: the third protrusion

212(a): first auxiliary side 212(a)′: first cutout

212(b): second auxiliary side 212(b)′: second cutout

220: extension

230: connection part

231: first connection 232: second connection

233: reinforcement part

300: filter receiving member

310: upper support

311: third flat part

311(a): first fastening part 311(b): second fastening part

312: third side part

320: lower support

321: fourth flat part 321 (a): third fastening part

322: fourth side part

330: side support

331: Hall

400: filter member

410: first sealing part

411: fourth fastening part 411(a): packing part

420: second sealing part

430: filter

500: filter manufacturing device

510: hopper 511: injection nozzle

520: mesh belt

530: head box 531: first reduced pressure dehydration device

540: second reduced pressure dehydration device

550: pressure roller

560: drying device

570: winding device

B: water bottle

Claims (10)

1. a fixing part detachably coupled to the outer surface of the water bottle opening;

   a cap portion positioned above the fixing portion;

   a filter accommodating member positioned below the fixing part; and

   A portable water bottle cap comprising a; a filter member for filtering foreign substances contained in the water of the water bottle.
2. According to claim 1,

   The fixing portion includes a first side portion in close contact with the outer surface of the water bottle opening and a first flat portion covering the first side portion,

   A portable water bottle cap, characterized in that the upper surface of the first flat part is provided with a discharge part protruding a predetermined height, and a raised wall for fixing the cap part to the fixing part.
3. 3. The method of claim 2,

   The cap part includes a cap part body composed of a second flat part and a second side part, and a connection part connecting the fixing part and the cap part body,

   The connecting portion includes a bendable first connecting portion having one side fixed to the second flat portion and the other end fixed to the first flat portion, and a second connecting portion having both ends provided outside the bent portion of the first connecting portion. A portable water bottle cap comprising a.
4. 3. The method of claim 2,

   A portable water bottle cap, characterized in that the first flat portion is provided with an air inlet for guiding air into the water bottle, and a moving piece for opening and closing the air inlet.
5. 5. The method of claim 4,

   The air inlet is composed of a first through hole having a predetermined inner diameter, a support plate of the outer periphery of the first through hole, a second through hole of the outer periphery of the support plate, and a connecting plate that crosses the second through hole with one side connected to the support plate. Features a portable water bottle cap.
6. 6. The method of claim 5,

   The moving piece includes a head positioned on the first through hole and an upper surface of the support plate, a body extending down a predetermined length through the first through hole while one side is connected to the bottom of the head, and one side of the body and the body A portable water bottle cap, characterized in that it is connected and composed of a tail that is larger than the outer diameter of the second through hole.
7. 4. The method of claim 3,

   A portable water bottle, characterized in that, on the inner surface of the second flat portion of the cap body, a first auxiliary cap in close contact with the outer edge of the discharge unit, and a second auxiliary cap in close contact with the inner surface edge of the discharge unit are further provided. Lid.
8. 8. The method of claim 7,

   A portable water bottle cap, characterized in that a second protrusion is formed on an outer surface of the second auxiliary cap, and a seating groove in which the second protrusion is seated is formed on an inner surface of the discharge unit.
9. 8. The method of claim 7,

   A portable water bottle cap, characterized in that a third protrusion is formed on the inner edge of the second side part of the cap body, and a first protrusion that meshes with the third protrusion is formed on the outer surface of the raised wall.
10. 5. The method of claim 4,

    The movable piece is a portable water bottle cap, characterized in that made of an elastic material.

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